Samsung launches Hearapy, a free Android app to mitigate motion sickness by playing a 100Hz sine wave tone; a 60-second session can provide two hours of relief (Andrew Liszewski/The Verge)

Andrew Liszewski / The Verge: Samsung launches Hearapy, a free Android app to mitigate motion sickness by playing a 100Hz sine wave tone; a 60-second session can provide two hours of relief — Listening to a 100Hz sine wave tone for just 60 seconds could reduce motion sickness symptoms for up to two hours.